5837 Alderbrook Ct, Castro Valley, CA 94552 Property Records

Alameda County property record for 5837 Alderbrook Ct, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,154 sqft · built 1984
Lot Size	0.238 acres (10,375 sqft)
Owner	2 Individual Names on File
Last Sale	$1,600,500 (May 2022)
Tax Bill	$20,904 (2025)
Deeds & Mortgages	Jan 2022 Line of Credit Apr 2022 Line of Credit + 2 more
Flood Zone	Zone X (minimal risk)
APN	`85-6309-22`

Property Details

APN / Parcel Number

Primary APN	`85-6309-22`
Alternative APN	`085-6309-022-00`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,154 sqft Living Area

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1984
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	10,375 sqft (0.238 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	5837 ALDERBROOK CT
City	CASTRO VALLEY
State	CA
Zip	94552-1748
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00079 BLK: TR: 3983
Legal Subdivision	TRACT 3983 FILED NOVEMBER 28 1979
Legal Tract	3983
Legal Lot Number	79
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1001
Census Tract	430200

Owner

5837 Alderbrook Ct is owned by two individuals who bought it in May 2022.

Source: Alameda County records, as of August 5, 2026

Owner of Record	2 Individual Names on File
Mailing Address	491 BELLEVUE AVE, DALY CITY, CA 94014-1309
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jan 24, 2022	Deed of Trust, Mortgage · Line of Credit US BANK NA
Apr 5, 2022	Deed of Trust, Mortgage · Line of Credit US BANK NA
May 19, 2022	Grant Deed, Transfer · Conventional Mortgage FREMONT BANK
May 28, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage CHERRY CREEK MORTGAGE CO INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 19, 2022 · Amount on File
Deed Sale	May 19, 2022 · Amount on File
Prior Sale	Aug 15, 1997 · Amount on File
Deed Document Number	202296932
Prior Transfer Date	Aug 8, 1997
Prior Transfer Doc	0000207885
Record Updated	Oct 29, 2026

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748
Transaction Type	Mortgage
Record Updated	Sep 28, 2023
Title Company	RADIAN SETTLEMENT SERVICES INC, RADIAN SETTLEMENT SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748

Mortgage

Document Number	0000015117
Date	Jan 24, 2022
Instrument	2022015117

Lender

Name	US BANK NA
Type	Bank
Address	LA JOLLA, CA 92037

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748
Transaction Type	Mortgage
Record Updated	Sep 28, 2023
Title Company	RADIAN SETTLEMENT SERVICES INC, RADIAN SETTLEMENT SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748

Mortgage

Document Number	0000068606
Date	Apr 5, 2022
Instrument	2022068606

Lender

Name	US BANK NA
Type	Bank
Address	LA JOLLA, CA 92037

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

May 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 19, 2022
Property Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748
Document Number	0000096932
Map Reference	MB 115 PG 1
Instrument Date	May 5, 2022
Instrument	2022096932
Transaction Type	Transfer
Record Updated	Sep 28, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,760.55
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748

Mortgage

Document Number	0000096933
Date	May 19, 2022
Instrument	2022096933

Lender

Name	FREMONT BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2052

May 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	May 28, 2021
Property Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748
Document Number	0000200986
Map Reference	MB 115 PG 1
Instrument Date	May 19, 2021
Instrument	2021200986
Transaction Type	Transfer
Record Updated	Sep 28, 2023
Title Company	ACCOMODATION, ACCOMMODATION

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	5837 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748

Mortgage

Document Number	0000200987
Date	May 28, 2021
Instrument	2021200987

Lender

Name	CHERRY CREEK MORTGAGE CO INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 5837 Alderbrook Ct was $20,904.

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Unified School District	Castro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,731,871 (+2%) Land $519,561 Building $1,212,310
2025	$20,904.00	$1,697,920 Land $509,376 Building $1,188,544
2023	$19,788.00	$1,600,000 Land $480,000 Building $1,120,000	$1,538,640

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 5837 Alderbrook Ct in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective May 25, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 5837 Alderbrook Ct is high, ranking above 72% of the US, with a 0.3% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	High above 72% of the US · above 47% of California
Wildfire Likelihood	0.3% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 208 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Unwired.

Nearby Properties on Alderbrook Ct

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures